module Mutest::Util
Utility methods
Constants
- SizeError
Error raised by `Util.one` if size is less than zero or greater than one
Public Class Methods
one(array)
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Return only element in array if it contains exactly one member
@param array [Array]
@return [Object] first entry
# File lib/mutest/util.rb, line 12 def self.one(array) return array.first if array.one? raise SizeError, "expected size to be exactly 1 but size was #{array.size}" end